<li class="{% if active %}active{% endif %}">
  <a tabindex="0" role="button" data-container="body" data-toggle="popover" data-trigger="hover" data-placement="top" data-html="true" title="{{'24小时作业批改'|trans}} {% if not active %}<small class='text-muted'>({{'暂未提供'|trans}})</span>{% endif %}" data-content="{{'24小时内完成作业批改，即时反馈并巩固您的学习效果'|trans}}">{{'练'|trans}}</a>
</li>